9
STEP 5: Gauge the amount of washers needed by stacking washers and metal strap in
place, as shown in Figure 3, Detail A. Typical installation requires 6 to 7 wash-
ers.
STEP 6: Insert concrete fastener into hole in metal strap, insert washers over end of fas-
tener, and then insert into hole drilled into concrete.
STEP 7: Tighten concrete fastener.
NOTE:
Do not over-tighten the concrete fastener. Doing so can weaken the
integrity of the concrete fastener and cause it to break.
STEP 8: Finish unit assembly per unit’s installation instructions.
4.0 REFRIGERANT CONNECTIONS
All units are factory charged with Refrigerant 22 for 15 ft. of line set. All models are
supplied with service valves. Keep tube ends sealed until connection is to be made
to prevent system contamination.
5.0 REPLACEMENT UNITS
To prevent failure of a new heat pump unit, the existing tubing system must be cor-
rectly sized and cleaned or replaced. Care must be exercised that the expansion
device is not plugged. For new and replacement units, a liquid line filter drier should
be installed and refrigerant tubing should be properly sized. Test the oil for acid. If
positive, a liquid line filter drier is mandatory.
6.0 INDOOR COIL
REFER TO INDOOR COIL MANUFACTURER’S INSTALLATION INSTRUCTIONS.
IMPORTANT: The manufacturer is not responsible for the performance and opera-
tion of a mismatched system, or for a match listed with another manufacturer’s coil.
FIGURE 3
TIE-DOWN KIT ASSEMBLY
DETAIL A
